Et Voila

"And there it is!"

In simple terms, it means "Tadaa!", "Look at this!", or "It's done!", basically.
Of course, it could mean many more things, like anything in any language - all depends on the context.
It just got butchered & simplified by popular media, specifically American, just like most words & phrases.

Et Voila ! (technically speaking: "Et voilà!")

It means "And there it is!" or any similar saying.

Ofc, this is not a place for truthful information.
Neither is Facebook/Instagram, Twitter(nobody calls it X - GTFO), TikTok, Google/Youtube
... neither is Wikipedia(although resourceful & probably more reliable than any above)
Check your sources. Trust your instincts.
Practice common sense 🧠